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1. 发明申请

US20070007134A1 Gas concentration measuring apparatus designed to establish quick determination of degree of activation of gas sensor 审中-公开
标题翻译：气体浓度测量仪设计用于快速确定气体传感器的激活程度
公开(公告)号：US20070007134A1
公开(公告)日：2007-01-11
申请号：US11483608
申请日：2006-07-11
申请人： Tomoo Kawase , Eiichi Kurokawa , Toru Katafuchi
发明人： Tomoo Kawase , Eiichi Kurokawa , Toru Katafuchi
IPC分类号： G01N27/26
CPC分类号： F02D41/1494 , F02D41/1456 , G01N27/4067 , G01N27/4175
摘要： A gas concentration measuring system for use in air-fuel ratio control of motor vehicle engines is provided which is designed to determine the concentrations of oxygen as a function of an air-fuel ratio of a mixture supplied to the engine through a sensor element. The sensor element is activated by heat produced by an electric heater. The system works to sample the accumulated amount of energy inputted to the sensor element by the heat produced by the heater to determine whether the sensor element has been activated enough to produce an output representing an actual value of the air-fuel ratio correctly or not. Use of the accumulated amount of energy inputted to the sensor element will result in a decreased time required for such a determination as compared with the impedance of the sensor element.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量系统，其被设计为根据通过传感器元件提供给发动机的混合物的空燃比来确定氧浓度。传感器元件由电加热器产生的热量激活。该系统用于通过由加热器产生的热量来采样输入到传感器元件的能量的累积量，以确定传感器元件是否已经被足够的激活，以正确地产生表示空燃比的实际值的输出。使用输入到传感器元件的累积能量将导致与传感器元件的阻抗相比所需的这种确定所需的时间减少。

2. 发明授权

US07980121B2 Degradation simulator for gas sensor 有权
标题翻译：气体传感器降解模拟器
公开(公告)号：US07980121B2
公开(公告)日：2011-07-19
申请号：US12203398
申请日：2008-09-03
申请人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
发明人： Mikiyasu Matsuoka , Tomoo Kawase , Eiichi Kurokawa
IPC分类号： G01M15/10
CPC分类号： G01N33/0037 , F02D41/1454 , F02D41/1474 , F02D41/1495 , F02D41/222 , F02D41/2474 , Y02A50/245
摘要： The degradation simulator is used for a gas sensor including a sensor element having a solid electrolyte layer and a pair of electrodes located opposite to each other across from the solid electrolyte layer, the sensor element outputting a sensor output signal having a value depending on concentration of a specific gas in the ambient gas. The degradation simulator includes a first setting function of enabling variably setting a time constant delay which appears on the sensor output signal when concentration of the specific gas changes, a second setting function of enabling variably setting a dead time delay which appears on the sensor output signal when concentration of the specific gas changes, and an adding function of adding at least one of the time constant delay and dead time delay to the sensor output signal in order to generate a pseudo-degraded sensor output signal in accordance with an external instruction.
摘要翻译：降解模拟器用于气体传感器，其包括具有固体电解质层的传感器元件和在固体电解质层之间彼此相对定位的一对电极，传感器元件输出具有取决于浓度的值的传感器输出信号环境气体中的特定气体。降级模拟器包括第一设置功能，其能够可变地设置当特定气体的浓度改变时出现在传感器输出信号上的时间常数延迟，允许可变地设置出现在传感器输出信号上的死区延迟的第二设置功能当特定气体的浓度变化时，以及将至少一个时间常数延迟和死区时间延迟添加到传感器输出信号中的加法功能，以便根据外部指令产生伪劣化的传感器输出信号。

3. 发明授权

US07582197B2 Gas concentration measuring apparatus with failure monitor 有权
标题翻译：具有故障监测器的气体浓度测量仪
公开(公告)号：US07582197B2
公开(公告)日：2009-09-01
申请号：US11091916
申请日：2005-03-29
申请人： Tomoo Kawase , Eiichi Kurokawa
发明人： Tomoo Kawase , Eiichi Kurokawa
IPC分类号： G01N27/26
CPC分类号： F02D41/1495 , F02D41/1455 , G01N27/4175 , G01N33/007
摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to detect and identify a cause of failure in operation of an A/F sensor. The apparatus works to apply the voltage to a sensor element and sweep it to produce a change in electrical current flowing through the sensor element for measuring the impedance of the sensor element. The apparatus samples values of the change in the current, a sensor output indicating an air-fuel ratio of mixture supplied to the engine, etc., before and/or after the sensor element is activated and uses a combination thereof to identify the cause of the failure of the A/F sensor.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量装置，其被设计用于检测和识别A / F传感器的操作失败的原因。该装置用于将电压施加到传感器元件并将其扫过以产生流过传感器元件的电流变化，以测量传感器元件的阻抗。该装置在传感器元件被激活之前和/或之后采样电流变化的值，传感器输出，指示供应给发动机的混合物的空气 - 燃料比等，并且使用其组合来识别 A / F传感器的故障。

4. 发明申请

US20080262704A1 OXYGEN SENSOR OUTPUT CORRECTION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
标题翻译：用于内燃机的氧气传感器输出校正装置
公开(公告)号：US20080262704A1
公开(公告)日：2008-10-23
申请号：US12104027
申请日：2008-04-16
申请人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
发明人： Tomoo Kawase , Eiichi Kurokawa , Takahito Masuko
IPC分类号： F01N9/00
CPC分类号： F01N9/00 , F02D41/123 , F02D41/1448 , F02D41/1455 , F02D41/18 , F02D41/2454 , F02D41/2474 , Y02T10/47
摘要： A correction apparatus for correcting an error in an output of an oxygen sensor such as an A/F sensor installed in an exhaust pipe of an internal combustion engine to measure the concentration of oxygen contained in exhaust gas. The apparatus works to determine a given parameter correlating with an actual concentration of oxygen within the exhaust pipe after start of a fuel cut event and also determine an oxygen concentration-corresponding output based on the given parameter which is a parameter corresponding to an output of the oxygen sensor considered to represent the actual concentration of oxygen correctly. The apparatus samples an output of the oxygen sensor during the fuel cut event and determines a correction factor based on the sampled output of the oxygen sensor and the oxygen concentration-corresponding output for use in correcting an output of the oxygen sensor when the engine is undergoing no fuel cut.
摘要翻译：一种用于校正安装在内燃机的排气管中的A / F传感器等氧传感器的输出的误差的校正装置，以测量废气中所含的氧浓度。该装置用于确定在开始燃料切断事件之后与排气管内的氧气的实际浓度相关联的给定参数，并且还基于给定参数确定氧浓度对应的输出，所述给定参数是对应于氧气传感器被认为是正确表示氧气的实际浓度。该装置在燃料切断事件期间对氧传感器的输出进行采样，并根据氧传感器的采样输出和氧浓度相应的输出确定校正因子，用于在发动机正在进行时校正氧传感器的输出没有燃料切断

5. 发明申请

US20050217347A1 Gas concentration measuring apparatus with failure monitor 有权
标题翻译：具有故障监测器的气体浓度测量仪
公开(公告)号：US20050217347A1
公开(公告)日：2005-10-06
申请号：US11091916
申请日：2005-03-29
申请人： Tomoo Kawase , Eiichi Kurokawa
发明人： Tomoo Kawase , Eiichi Kurokawa
IPC分类号： F02D41/14 , G01M19/00
CPC分类号： F02D41/1495 , F02D41/1455 , G01N27/4175 , G01N33/007
摘要： A gas concentration measuring apparatus for use in air-fuel ratio control of motor vehicle engines is provided which is designed to detect and identify a cause of failure in operation of an A/F sensor. The apparatus works to apply the voltage to a sensor element and sweep it to produce a change in electrical current flowing through the sensor element for measuring the impedance of the sensor element. The apparatus samples values of the change in the current, a sensor output indicating an air-fuel ratio of mixture supplied to the engine, etc., before and/or after the sensor element is activated and uses a combination thereof to identify the cause of the failure of the A/F sensor.
摘要翻译：提供一种用于机动车辆发动机的空燃比控制的气体浓度测量装置，其被设计用于检测和识别A / F传感器的操作失败的原因。该装置用于将电压施加到传感器元件并将其扫过以产生流过传感器元件的电流变化，以测量传感器元件的阻抗。该装置在传感器元件被激活之前和/或之后采样电流变化的值，传感器输出，指示供应给发动机的混合物的空气 - 燃料比等，并且使用其组合来识别 A / F传感器的故障。

6. 发明授权

US06849174B2 Gas concentration measuring apparatus designed to minimize error component contained in output 失效
标题翻译：气体浓度测量装置设计用于最小化输出中包含的误差分量
公开(公告)号：US06849174B2
公开(公告)日：2005-02-01
申请号：US10373289
申请日：2003-02-26
申请人： Satoshi Hada , Eiichi Kurokawa , Tomoo Kawase , Toshiyuki Suzuki , Satoshi Haseda
发明人： Satoshi Hada , Eiichi Kurokawa , Tomoo Kawase , Toshiyuki Suzuki , Satoshi Haseda
IPC分类号： G01N27/41 , G01N27/00 , G01N27/26 , G01N27/407 , G01N27/416 , G01N27/417 , G01N27/419
CPC分类号： G01N27/4067
摘要： A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of O2 and HOx contained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing circuit which converts a current signal outputted from the gas sensor as a function of the concentration of either of O2 and NOx into a voltage signal. The gas sensor and the signal processing circuit are connected electrically through a conductor. The conductor has a length which is determined as a function of a level of the current signal outputted from the gas sensor. The weaker the level of the current signal is, the shorter the length of the conductor. This minimizes addition of electrical noises to the current signal outputted from the gas sensor.
摘要翻译：提供了一种气体浓度测量装置，其具有设计用于测量例如汽车发动机的废气排放中所含的O 2和HO x的浓度的气体传感器。该装置包括信号处理电路，其将从气体传感器输出的电流信号作为O2和NOx中的任一个的浓度变换为电压信号。气体传感器和信号处理电路通过导体电连接。导体具有根据从气体传感器输出的电流信号的电平确定的长度。电流信号的电平越弱，导体长度越短。这最小化了从气体传感器输出的电流信号中增加电噪声。

7. 发明授权

US06547955B1 Gas concentration measuring apparatus designed to minimize error component contained in output 失效
公开(公告)号：US06547955B1
公开(公告)日：2003-04-15
申请号：US09453518
申请日：1999-12-03
申请人： Satoshi Hada , Eiichi Kurokawa , Tomoo Kawase , Toshiyuki Suzuki , Satoshi Haseda
发明人： Satoshi Hada , Eiichi Kurokawa , Tomoo Kawase , Toshiyuki Suzuki , Satoshi Haseda
IPC分类号： G01N27407
CPC分类号： G01N27/4067
摘要： A gas concentration measuring apparatus which has a gas sensor designed to measure, for example, the concentrations of O2 and HOx contained in exhaust emissions of an automotive engine is provided. The apparatus includes a signal processing circuit which converts a current signal outputted from the gas sensor as a function of the concentration of either of O2 and HOx into a voltage signal. The gas sensor and the signal processing circuit are connected electrically through a conductor. The conductor has a length which is determined as a function of a level of the current signal outputted from the gas sensor. The weaker the level of the current signal is, the shorter the length of the conductor. This minimizes addition of electrical noises to the current signal outputted from the gas sensor.

8. 发明授权

US06453724B1 Gas concentration sensing apparatus 有权
标题翻译：气体浓度检测装置
公开(公告)号：US06453724B1
公开(公告)日：2002-09-24
申请号：US09399949
申请日：1999-09-20
申请人： Tomoo Kawase , Eiichi Kurokawa , Satoshi Hada , Toshiyuki Suzuki
发明人： Tomoo Kawase , Eiichi Kurokawa , Satoshi Hada , Toshiyuki Suzuki
IPC分类号： G01N700
CPC分类号： G01N27/4067 , G01N33/0037 , Y02A50/245
摘要： A gas concentration sensor comprises a pump cell for detecting an oxygen concentration in an exhaust gas and a sensor cell for detecting a NOx concentration in the exhaust gas. A porous diffusive layer is interposed between these cells. Furthermore, the sensor comprises a heater for heating these cells. A control circuit produces a sensor cell voltage having an A.C. component to detect the impedance of sensor cell. The electric power supplied to the heater is controlled based on a detected impedance value of the sensor cell.
摘要翻译：气体浓度传感器包括用于检测排气中的氧浓度的泵室和用于检测废气中的NOx浓度的传感器单元。这些细胞之间插入多孔扩散层。此外，传感器包括用于加热这些电池的加热器。控制电路产生具有交流分量的传感器电池电压，以检测传感器单元的阻抗。基于检测到的传感器单元的阻抗值来控制提供给加热器的电力。

9. 发明授权

US06442998B1 Gas concentration measuring apparatus compensating for error component of output signal 有权
公开(公告)号：US06442998B1
公开(公告)日：2002-09-03
申请号：US09899845
申请日：2001-07-09
申请人： Eiichi Kurokawa , Tomoo Kawase , Satoshi Hada , Toshiyuki Suzuki , Satoshi Nakamura
发明人： Eiichi Kurokawa , Tomoo Kawase , Satoshi Hada , Toshiyuki Suzuki , Satoshi Nakamura
IPC分类号： G01N27416
摘要： A gas concentration measuring apparatus is provided which measures the concentration of two kinds of gas components such as O2 and NOx contained in exhaust gasses of an internal combustion engine of automotive vehicles. The apparatus has a gas sensor which includes a first cell responsive to application of a voltage to discharge O2 in the exhaust gasses to the outside and produce an electric current as a function of concentration of the discharged O2 and a second cell responsive to application of a voltage to produce an electric current as a function of concentration of NOx in the exhaust gasses from which the O2 is discharged by the first cell. The apparatus offsets an error component of the electric current produced by the second cell which depends upon O2 contained in the exhaust gasses.

10. 发明授权

US06295862B1 Gas concentration measuring apparatus compensating for error component of output signal 有权
标题翻译：补偿输出信号误差分量的气体浓度测量装置
公开(公告)号：US06295862B1
公开(公告)日：2001-10-02
申请号：US09432067
申请日：1999-11-02
申请人： Eiichi Kurokawa , Tomoo Kawase , Satoshi Hudu , Toshiyuki Suzuki , Satoshi Nakamura
发明人： Eiichi Kurokawa , Tomoo Kawase , Satoshi Hudu , Toshiyuki Suzuki , Satoshi Nakamura
IPC分类号： G01N27416
CPC分类号： G01N27/419
摘要： A gas concentration measuring apparatus is provided which measures the concentration of two kinds of gas components such as O2 and NOx contained in exhaust gasses of an internal combustion engine of automotive vehicles. The apparatus has a gas sensor which includes a first cell responsive to application of a voltage to discharge O2 in the exhaust gasses to the outside and produce an electric current as a function of concentration of the discharged O2 and a second cell responsive to application of a voltage to produce an electric current as a function of concentration of NOx in the exhaust gasses from which the O2 is discharged by the first cell. The apparatus offsets an error component of the electric current produced by the second cell which depends upon O2 contained in the exhaust gasses, or which in related operations, depends upon any residual oxygen remaining in the second cell without being discharged by the first cell.
摘要翻译：提供一种气体浓度测量装置，其测量机动车辆的内燃机的废气中所含的两种气体成分如O 2和NO x的浓度。该装置具有气体传感器，该气体传感器包括响应于施加电压以将废气中的O 2排放到外部并产生作为排放的O 2的浓度的函数的电流的第一单元和响应于应用电压以产生作为第一电池从其排出O2的废气中的NOx的浓度的函数的电流。该装置抵消由第二电池产生的电流的误差分量，其取决于废气中所含的O 2，或者在相关操作中取决于残留在第二电池中的任何残余氧而不被第一电池放电。

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